161616600510100 has 18 divisors (see below), whose sum is σ = 350708023107134. Its totient is φ = 64646640204000.

The previous prime is 161616600510089. The next prime is 161616600510109. The reversal of 161616600510100 is 1015006616161.

It can be written as a sum of positive squares in 3 ways, for example, as 25416076942096 + 136200523568004 = 5041436^2 + 11670498^2 .

It is a super-2 number, since 2×161616600510100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161616600510109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 808083002451 + ... + 808083002650.

Almost surely, 2^{161616600510100} is an apocalyptic number.

161616600510100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161616600510100 is an abundant number, since it is smaller than the sum of its proper divisors (189091422597034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161616600510100 is a wasteful number, since it uses less digits than its factorization.

161616600510100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616166005115 (or 1616166005108 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 161616600510100 in words is "one hundred sixty-one trillion, six hundred sixteen billion, six hundred million, five hundred ten thousand, one hundred".